DNS Management

Outline

1. DNS Basics

• How DNS works
• Overview of record types
• TTL (Time To Live)

2. Common DNS Record Types

• A record

  • IPv4 resolution
  • How to add an A record
  • Typical use cases

• AAAA record

  • IPv6 resolution
  • Enabling IPv6 support

• CNAME record

  • Alias records
  • When and when not to use
  • Differences from A records

• MX record

  • Mail server configuration
  • Priority settings

• TXT record

  • Text records
  • SPF, DKIM, DMARC
  • Domain verification

• SRV record

  • Service records
  • When to use them

• NS record

  • Name server records
  • Delegating subdomains

3. Adding and Managing Records

• Add records in the Cloudflare dashboard
• Edit and delete records
• Bulk import DNS records
• Record priority considerations

4. DNS Performance

• Speeding up resolution
• Proxied (orange cloud) vs DNS-only (gray cloud)
• DNS load balancing
• Geo routing

5. Advanced DNS Features

• DNS Security

  • DNSSEC setup
  • DNS filtering and blocking

• DNS Analytics

  • Query logs
  • Resolution stats

6. FAQs

• Record not taking effect
• CNAME conflicts
• Email service setup issues
• Slow DNS resolution

7. Summary

• Best practices for DNS management
• Common configuration examples